| Name | Number | Bank | Mouth | Political subdivision | Source | Political subdivision |
|---|
| West Branch Clarion River | 1 | Right | 41.4914°N -78.6783°W (elev. 1437feet) | Johnsonburg, Pennsylvania | 41.7189°N -78.6467°W | Mount Jewett, Pennsylvania |
| East Branch Clarion River | 2 | Left | 41.4914°N -78.6781°W (elev. 1440feet) | Johnsonburg, Pennsylvania | 41.6758°N -78.4853°W | Sergeant Township, McKean County |
| Johnson Run | 3 | Right | 41.4889°N -78.6783°W (elev. 1437feet) | Johnsonburg, Pennsylvania | 41.5°N -78.7069°W | Ridgway Township, Elk County |
| Powers Run | 4 | Left | 41.4794°N -78.6719°W (elev. 1424feet) | Johnsonburg, Pennsylvania | 41.4944°N -78.5569°W | St. Marys, Pennsylvania |
| Riley Run | 5 | Right | 41.4539°N -78.7086°W (elev. 1414feet) | Ridgway Township, Elk County | 41.4728°N -78.6981°W | Ridgway Township, Elk County |
| Little Mill Creek | 6 | Right | 41.4533°N -78.72°W (elev. 1381feet) | Ridgway Township, Elk County | 41.5569°N -78.7581°W | Jones Township, Elk County |
| Mason Creek | 7 | Right | 41.4389°N -78.7317°W (elev. 1371feet) | Ridgway Township, Elk County | 41.47°N -78.7644°W | Ridgway Township, Elk County |
| Elk Creek | 8 | Left | 41.4217°N -78.7342°W (elev. 1362feet) | Ridgway, Pennsylvania | 41.4803°N -78.5658°W | St. Marys, Pennsylvania |
| Island Run | 9 | Left | 41.3972°N -78.7525°W (elev. 1348feet) | Ridgway Township, Elk County | 41.3981°N -78.7517°W | Ridgway Township, Elk County |
| Big Mill Creek | 10 | Right | 41.3956°N -78.7628°W (elev. 1342feet) | Ridgway Township, Elk County | 41.5986°N -78.7928°W | Jones Township, Elk County |
| Connerville Run | 11 | Right | 41.3803°N -78.7831°W (elev. 1332feet) | Ridgway Township, Elk County | 41.3961°N -78.7942°W | Ridgway Township, Elk County |
| Dog Hollow Run | 12 | Left | 41.3739°N -78.7922°W (elev. 1325feet) | Ridgway Township, Elk County | 41.3619°N -78.7561°W | Ridgway Township, Elk County |
| Gillis Run | 13 | Right | 41.3747°N -78.8119°W (elev. 1329feet) | Ridgway Township, Elk County | 41.3869°N -78.8033°W | Ridgway Township, Elk County |
| Little Toby Creek | 14 | Left | 41.3664°N -78.8236°W (elev. 1322feet) | Spring Creek Township, Elk County | 41.3319°N -78.6089°W | Fox Township, Elk County, Pennsylvania |
| Bear Creek | 15 | Right | 41.3814°N -78.8314°W (elev. 1335feet) | Spring Creek Township, Elk County | 41.5678°N -78.8181°W | Highland Township, Elk County |
| Mahood Run | 16 | Left | 41.3733°N -78.8508°W (elev. 1302feet) | Spring Creek Township, Elk County | 41.3533°N -78.8453°W | Spring Creek Township, Elk County |
| Beech Bottom Run | 17 | Left | 41.3892°N -78.875°W (elev. 1289feet) | Spring Creek Township, Elk County | 41.3447°N -78.8544°W | Spring Creek Township, Elk County |
| Lake City Run | 18 | Left | 41.3892°N -78.8761°W (elev. 1283feet) | Spring Creek Township, Elk County | 41.3683°N -78.8911°W | Spring Creek Township, Elk County |
| Crow Run | 19 | Right | 41.3981°N -78.8858°W (elev. 1276feet) | Spring Creek Township, Elk County | 41.4356°N -78.8575°W | Spring Creek Township, Elk County |
| Irwin Run | 20 | Right | 41.4°N -78.9053°W (elev. 1276feet) | Spring Creek Township, Elk County | 41.4489°N -78.8781°W | Spring Creek Township, Elk County |
| Spring Creek | 21 | Right | 41.4006°N -78.9325°W (elev. 1257feet) | Spring Creek Township, Elk County | 41.5397°N -79.0278°W | Howe Township, Forest County |
| Maxwell Run | 22 | Left | 41.3844°N -78.9347°W (elev. 1250feet) | Spring Creek Township, Elk County | 41.3175°N -78.8542°W | Spring Creek Township, Elk County |
| Elliott Run | 23 | Right | 41.3825°N -78.9436°W (elev. 1257feet) | Spring Creek Township, Elk County | 41.3939°N -78.9625°W | Millstone Township, Elk County |
| Daugherty Run | 24 | Left | 41.3697°N -78.9606°W (elev. 1253feet) | Heath Township, Jefferson County | 41.3575°N -78.9394°W | Spring Creek Township, Elk County |
| Raught Run | 25 | Left | 41.3694°N -78.9639°W (elev. 1240feet) | Heath Township, Jefferson County | 41.3361°N -78.9667°W | Heath Township, Jefferson County |
| Painter Run | 26 | | 41.3717°N -78.9669°W (elev. 1237feet) | Heath Township, Jefferson County | 41.3881°N -78.9672°W | Millstone Township, Elk County |
| Church Run | 27 | Right | 41.3764°N -78.9733°W (elev. 1243feet) | Millstone Township, Elk County | 41.4017°N -78.9892°W | Millstone Township, Elk County |
| Clyde Run | 28 | Right | 41.3731°N -78.9761°W (elev. 1230feet) | Heath Township, Jefferson County | 41.3828°N -78.9908°W | Millstone Township, Elk County |
| Callen Run | 29 | Left | 41.3503°N -79.015°W (elev. 1240feet) | Heath Township, Jefferson County | 41.3139°N -78.9619°W | Polk Township, Jefferson County |
| Cline Run | 30 | Right | 41.3572°N -79.0269°W (elev. 1237feet) | Millstone Township, Elk County | 41.3817°N -79.0089°W | Millstone Township, Elk County |
| Wyncoop Run | 31 | Right | 41.3572°N -79.0375°W (elev. 1207feet) | Heath Township, Jefferson County | 41.4022°N -79.0033°W | Millstone Township, Elk County |
| Leeper Run | 32 | Left | 41.3544°N -79.0422°W (elev. 1224feet) | Heath Township, Jefferson County | 41.335°N -79.0331°W | Heath Township, Jefferson County |
| Pine Run | 33 | Left | 41.35°N -79.0597°W (elev. 1207feet) | Heath Township, Jefferson County | 41.3308°N -79.0456°W | Heath Township, Jefferson County |
| Millstone Creek | 34 | Right | 41.3536°N -79.0714°W (elev. 1207feet) | Millstone Township, Elk County | 41.3736°N -79.0839°W | Millstone Township, Elk County |
| Shippen Run | 35 | Right | 41.3425°N -79.0992°W (elev. 1197feet) | Barnett Township, Forest County | 41.3686°N -79.1°W | Barnett Township, Forest County |
| Clear Creek | 36 | Left | 41.3294°N -79.1033°W (elev. 1194feet) | Barnett Township, Jefferson County | 41.3192°N -79.0078°W | Heath Township, Jefferson County |
| Tadler Run | 37 | Left | 41.3303°N -79.1244°W (elev. 1194feet) | Barnett Township, Jefferson County | 41.3114°N -79.1158°W | Barnett Township, Jefferson County |
| Cherry Run | 38 | Right | 41.3331°N -79.1256°W (elev. 1207feet) | Barnett Township, Forest County | 41.3769°N -79.1339°W | Barnett Township, Forest County |
| Maple Creek | 39 | Right | 41.3414°N -79.1383°W (elev. 1178feet) | Barnett Township, Jefferson County | 41.4533°N -79.1392°W | Jenks Township, Forest County, Pennsylvania |
| Coleman Run | 40 | Right | 41.3439°N -79.1656°W (elev. 1184feet) | Barnett Township, Forest County | 41.3783°N -79.2108°W | Farmington Township, Clarion County |
| Troutman Run | 41 | Right | 41.3389°N -79.1847°W (elev. 1161feet) | Barnett Township, Jefferson County | 41.3553°N -79.2003°W | Barnett Township, Forest County |
| Henry Run | 42 | Right | 41.3242°N -79.1919°W (elev. 1155feet) | Barnett Township, Jefferson County | 41.3389°N -79.2033°W | Barnett Township, Forest County |
| Toms Run | 43 | Right | 41.3319°N -79.2069°W (elev. 1158feet) | Barnett Township, Forest County | 41.4114°N -79.2389°W | Farmington Township, Clarion County |
| Henry Run | 44 | Right | 41.3208°N -79.2267°W (elev. 1145feet) | Farmington Township, Clarion County | 41.3547°N -79.2517°W | Farmington Township, Clarion County |
| Cathers Run | 45 | Left | 41.3167°N -79.2336°W (elev. 1138feet) | Millcreek Township, Clarion County | 41.25°N -79.1164°W | Eldred Township, Jefferson County |
| Watson Run | 46 | Right | 41.3089°N -79.2572°W (elev. 1122feet) | Farmington Township, Clarion County | 41.3303°N -79.2678°W | Farmington Township, Clarion County |
| Maxwell Run | 47 | Left | 41.2917°N -79.2689°W (elev. 1125feet) | Millcreek Township, Clarion County | 41.2889°N -79.2292°W | Millcreek Township, Clarion County |
| Callihan Run | 48 | Right | 41.28°N -79.295°W (elev. 1102feet) | Highland Township, Clarion County | 41.31°N -79.2847°W | Highland Township, Clarion County |
| Blyson Run | 49 | Left | 41.2686°N -79.3025°W (elev. 1096feet) | Millcreek Township, Clarion County | 41.2675°N -79.2439°W | Millcreek Township, Clarion County |
| McGourvey Run | 50 | Right | 41.2428°N -79.3131°W (elev. 1089feet) | Millcreek Township, Clarion County | 41.2703°N -79.3264°W | Highland Township, Clarion County |
| Mill Creek | 51 | Left | 41.2356°N -79.3211°W (elev. 1089feet) | Millcreek Township, Clarion County | 41.2589°N -79.1097°W | Eldred Township, Jefferson County |
| Reed Run | 52 | Right | 41.2267°N -79.3386°W (elev. 1089feet) | Highland Township, Clarion County | 41.2494°N -79.3433°W | Highland Township, Clarion County |
| Toby Creek | 53 | Right | 41.2264°N -79.39°W (elev. 1089feet) | Highland Township, Clarion County | 41.3883°N -79.2808°W | Farmington Township, Clarion County |
| Trout Run | 54 | Left | 41.2022°N -79.4061°W (elev. 1093feet) | Monroe Township, Clarion County | 41.1944°N -79.3719°W | Clarion Township, Clarion County |
| Courtleys Run | 55 | Left | 41.1889°N -79.4119°W (elev. 1119feet) | Monroe Township, Clarion County | 41.1903°N -79.3878°W | Monroe Township, Clarion County |
| Piney Reservoir | 56 | | 41.1917°N -79.4347°W (elev. 1053feet) | Piney Township, Clarion County | | |
| Piney Dam | 57 | | 41.1922°N -79.4336°W (elev. 1056feet) | Paint Township, Clarion County | | |
| Piney Creek | 58 | Left | 41.1694°N -79.4733°W (elev. 997feet) | Piney Township, Clarion County | 41.1622°N -79.2358°W | Limestone Township, Clarion County, Pennsylvania |
| Deer Creek | 59 | Right | 41.1717°N -79.4789°W (elev. 997feet) | Beaver Township, Clarion County | 41.2878°N -79.5294°W | Ashland Township, Clarion County |
| Canoe Creek | 60 | Right | 41.1622°N -79.5328°W (elev. 984feet) | Beaver Township, Clarion County | 41.2744°N -79.565°W | Ashland Township, Clarion County |
| Beaver Creek | 61 | Right | 41.1603°N -79.5472°W (elev. 978feet) | Licking Township, Clarion County | 41.2656°N -79.5842°W | Ashland Township, Clarion County |
| Licking Creek | 62 | Left | 41.1289°N -79.5597°W (elev. 958feet) | Licking Township, Clarion County | 41.0653°N -79.4367°W | Porter Township, Clarion County |
| Turkey Run | 63 | Right | 41.1533°N -79.6306°W (elev. 892feet) | Richland Township, Clarion County | 41.2431°N -79.6058°W | Salem Township, Clarion County | |
